Westminster Hall is a medieval great hall which forms part of the Palace of Westminster in London. It was built in 1097 for William II, and at that time was one of the largest halls in Europe. It is particularly notable for its hammerbeam roof, which was commissioned for Richard II in 1393 and built by the royal carpenter, Hugh Herland. At the same time the rest of the hall was remodelled by the master mason Henry Yevele. The hall survived the fire of 1834 and bombing in World War II and, in spite of various restorations, has maintained its medieval structure and many of its features.
The hall has served a variety of ceremonial and administrative functions throughout its history. From the twelfth to the nineteenth centuries it was home to the courts of King's Bench, Chancery, and Common Pleas. It was the scene of important state trials, including those of Thomas More,Guy Fawkes and King Charles I. Banquets and royal entertainments were hosted in the hall, with the last coronation banquet being that of George IV in 1821. Since the twentieth century, the hall has been the venue for the lyings in state of state funerals. It is used for special addresses by Parliament to the monarch, and is on rare occasions the venue for joint addresses to the two chambers of Parliament.